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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"VGI"”.
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An exposition of the nature of volunteered geographical information and its suitability for integration into spatial data infrastructures
… nature of volunteered geographical information (VGI) and on its applicability for use in a spatial data infrastructure (SDI) to supplement official and commercial sources, particularly given the ease with which ordinary people can document their environment, experiences, perspectives and …
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Understanding patterns of outdoor recreation in Canadian parks using volunteered geographic information and big data
… services. Volunteered geographic information (VGI) sources can provide researchers and management groups with valuable insights into human activity in these areas. In this thesis, I study how VGI sources can be used to estimate official visitation statistics in Canadian national parks and …
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Credibility assessment of volunteered geographic information for emergency management: a Bayesian network modeling approach
… paradigm of volunteered geographic information (VGI) in the field of Geography was resulted from recent advances of GPS equipped mobile devices such as the iPhone, and the amount of geographic information and its promptness has been dramatically increased with the participation of volunteers. …
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Gestures in Machine Interaction
Vnencumbered-gesture-interaction (VGI) describes the use of unrestricted gestures in machine interaction. The development of such technology will enable users to interact with machines and virtual environments by performing actions like grasping, pinching or waving without the need of peripherals. …
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Geo-Analytics of Citizen-Government Interaction: The Integration of Spatial Data Mining, Volunteered Geographic Information (VGI), And Geovisualization To Explore Non-emergency Requests in the State of Kuwait
The rapid and continuous growth of population requires simultaneous provision of public services (or commons) at high spatial and temporal scales. In addition to the commons provision, governments are ought to maintain the commons to be at high quality standards. However, the rapid consumption of …
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Personalized route generation for Mountain Biking cycling based on the user’s profile
… rely on Volunteered Geographic Information (VGI) both to acquire new trails for their databases and to rank them. While these tools are useful in most places, they can be of little to no help in regions with a smaller number of cyclists. This work proposes using data collected from multiple …
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Assessing the accuracy of openstreetmap data in south africa for the purpose of integrating it with authoritative data
… success of Volunteered Geographic Information (VGI) has gained the interest of National Mapping Agencies (NMAs) worldwide. VGI is geographic information that is freely generated by non-experts and shared using VGI initiatives available on the Internet. The NMA of South Africa i.e. the Chief …
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Social Media Geographic Information (SMGI): opportunities for spatial planning and governance
… namely Volunteered Geographic Information (VGI) and Social Media Geographic Information (SMGI), which are not only related to measures of the geographical component, but also to user perceptions and opinions on places, localities and daily-routine events. The wealth of VGI and SMGI freely …
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Participants' motivations to contribute geographic information in an online community
… examines volunteered geographic information (VGI), a Web 2.0 phenomenon in which users contribute geographic information online and collaboratively create maps. By examining the case of www.openstreetmap.org, I clarify why people contribute geographic information to an online community and …
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Foundations for a Network Model of Destination Value Creation
… utilizing volunteered geographic information (VGI) obtained from 4.6 million photographs shared on Flickr. Results of econometric analysis indicate that both seasonal effects and DVS network structures have statistically significant relationships with total tourism-related sales within a …
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GIS-based accessibility modelling as a means of evaluating geospatial data usability
… (FOSS) volunteer geographic information (VGI) network data from OpenStreetMap (OSM), and observations made as to their usability, while addressing cross-cutting topical themes, such as examining different sources of locational representation, different sources of network representation, …
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Examination of the Molecular Epidemiology, Expansion, Population Structure, and Virulence of the Emerging Fungal Pathogen,<italic>Cryptococcus gattii</italic> in the United States
… <italic>C. gattii</italic> molecular types (VGI-VGIV). A major focus of our efforts to examine this pathogen in the United States surrounds the unprecedented <italic>C. gattii</italic> outbreak that emerged in British Columbia, Canada in 1999 and has since expanded throughout the Pacific …
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Validating the Quality of Crowdsourced Data for Flood Modeling of Hurricane Harvey in Houston, Texas
… these years, Volunteered Geographic Information (VGI) data such as social media and crowdsourced data arise as an alternative and supplementary data source to enhance the exercise of flood inundation mapping. However, compared to authoritative data acquired by government agencies (i.e. stream gage …
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Geração automática de banco de dados para gestão municipal a partir de informação geográfica voluntária exportada da plataforma openstreetmap
… através de Informação Geográfica Voluntária (VGI) ultrapassasse os métodos convencionais disponíveis, dada à simplicidade e baixo custo, sendo uma excelente alternativa para que os municípios tenham acesso a informações geográficas para auxílio nas tomadas de decisões. O presente trabalho …
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Analysis of clnical features of cryptococcosis and antifungal susceptibility of clinical isolates in Korea
… (VNI, VNII, VNIII, VNIV for C. neoformans, VGI, VGII, VGIII, VGIV for C.gattii). Each subtypes shows different geographic distributions and antifungal susceptibility. We analyzed clinical features of cryptococcosis and antifungal susceptiblity of clinical isolates. METHODS: We analyzed …
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OSM-CAT: A software application to generate contribution summaries from OpenStreetMap XML
… example of Volunteered Geographical Information (VGI) available on the Internet. The aim of the OSM project is to provide a free and openly accessible spatial database. The data is provided by volunteers, who collect and contribute it to the OSM database using a variety of techniques and methods. …
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Enriquecendo bases de dados geoespaciais oficiais: uma abordagem híbrida para integração de topônimos colaborativos validados com inteligência artificial
… Topônimos; Nomes geográficos; OpenStreetMap; VGI; Inteligência Artificial; imagens ao nível de rua.
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Assessing Uncertainty in Volunteered Geographic Information for Emergency Response
This research project examines data produced by volunteers through the Ushahidi web platform in response to the earthquake that struck Haiti in January 2010. Volunteers translated messages submitted by victims in Haiti, categorized each message based on its content, and georeferenced each message …
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